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| General Mustang Tech General Mustang-related questions |
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#41 |
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I'm back! FT.Eutis, VA
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#42 |
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Sie lieben, mich zu hassen!
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He did this back in 98-99. I seriously doubt he has the time slip. Honestly,I am begining to question why I bother with you...........
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#43 |
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I'm back! FT.Eutis, VA
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well, its just hard for me to believe that I would be able to run close to or high 12's with a stock cam with aftermarket heads and intake. I would think the stock cam's lobes are too small to produce that much power. yes, the intake and heads will improve the flow but i mean, there's not much lift with the stock cam
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#44 | |
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LOL @ your mom
Join Date: Feb 2007
Location: N.E. SA
Posts: 8,745
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Quote:
I gave up long time ago.
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Built 00 Windsor engine, .20 over, 11.6:1cr, fully ported heads, Hardballer intake w/cooling mod, Scat rods, Probe pistons, Cobra crank, tri-metal Clevite race bearings, VT Stage 2 N/A cams, adjustable cam gears, Canton windage tray, MMR oil pump, Cobra pick up, 75MM Accufab t-body, Dragon plenum, JLT CAI, 24# injectors, Bassani mid lengths, mufflers & O/R X,255lph fuel pump, BBK FPR, Fidanza aluminum flywheel, AJE K-member, ARP hardware everywhere, X-Cal SCT custom tuned, 3.73's, Pro 5.0, polygraphite motor mounts, over 300+ RWHP & 320+ TQ |
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#45 | |
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I No Longer Lives in San Antonio!!!!!!!!!!!!! YES!!!
Join Date: Mar 2006
Location: Texas
Posts: 8,658
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HE KNOWS ALL!!!!
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OU > UT > TT ![]() Quote:
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#46 | ||
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I No Longer Lives in San Antonio!!!!!!!!!!!!! YES!!!
Join Date: Mar 2006
Location: Texas
Posts: 8,658
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OU > UT > TT ![]() Quote:
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#47 | |
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I'm back! FT.Eutis, VA
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#48 |
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Sie lieben, mich zu hassen!
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I think a 3/4 race cam should work..........
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#49 | |
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Back in the saddle again
Join Date: Feb 2006
Location: Texas
Posts: 1,851
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Quote:
![]() I'll state it plain and simple: stock heads with a cam will be slower than good heads witha stock cam.
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2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ |
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#50 | |
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Back in the saddle again
Join Date: Feb 2006
Location: Texas
Posts: 1,851
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Quote:
Me: dynoed 246/290 with stock heads and an e cam and ran a 12.81 at 106 My friend in dallas: dynoed 245/299 with stock e7s and stock cam. He ran 12.83 at 106 pretty identical mods other than cams both cars were fully tuned with identical air fuel. a head swap of gt40ps alone would net a gain of over 20 rwhp will the e cam do that to a stock headed 302? no not even close. with a stock stalled auto, adding a cam will SLOW your car down at teh track and until you are on the highway. You can add peak power and slow a car down at the same time, it is possible stock heads are freakin terrible and you shouldnt even begin to look at cam selections intil you have heads in mind or on your car.
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2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ |
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#51 |
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Back in the saddle again
Join Date: Feb 2006
Location: Texas
Posts: 1,851
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i hear the comp xe282 is good
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2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ |
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#52 | |
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I'm back! FT.Eutis, VA
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Quote:
Well, what cam would be good with a set of gt-40p's?
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Soon to be at Fort Lewis, WA. 1-60th NightStalkers, Special Operations Aviation Regiment, SOAR. 15U, I'm a hooker! MH-47E Chinook Army Aviation Leads the Way! 1965 Mustang 289 V8, under constuction
Holley 4brl 650cfm carb Edlebrock Performer Intake and soon to have Comp Cams Nostalgia Plus, N+271H camshaft |
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#53 | |
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Registered User
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i have always been of the opinion of getting a custom grind... |
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#54 | |
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Back in the saddle again
Join Date: Feb 2006
Location: Texas
Posts: 1,851
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Quote:
his was a stock 95 shortblock with 100k on it. You can find an anderson B series cam (b21, b25, b31) or a cam exactly like mine. xe270HR for 1.7s is what I have.I purchased it new in box for 175. You just have to look around on the forums and wait for what you want. Springs and TFS harpushrods I bought new. With any cam you will need to upgrade springs unless they are already heavy duty, if not you WILL experience valve float. around 6k rpm.... these are both roller cams. if for some reason you do not have a hydro roller block, call COMP "cam help" and ask them what they have similar to that cam in your application. The grind and specs on all these cams works very very well with the gt40P flow characteristics If money is an issue and you can get a roller block, a Stock HO cam should be able to pump out 275 rwhp. retard it 2-4 degrees you dont necessarily have to do the cam now as the heads will be the big benefit. EDIT: you have an auto, my numbers are rwhp with a stick.
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2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ |
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#55 |
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LSS Sponsor
![]() Join Date: Dec 2007
Location: New Braunfels
Posts: 451
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GT40Ps would be a good choice for a head, but if he uses a flat tappet cam short block it would be best to change the cam. If you go look up the cam specs for most of the old stock flat tappet cams, you will find that the lift and duration numbers are very small. You keep talking about hydraulic roller cam engines. The roller cams will keep the valves open higher throughout the duration that the cam opens the valve, even though the lift and duration numbers may look the same. The 289 heads are not the best heads on the planet, but they will do what he is wanting to do and then some. I would like someone to do a back to back test of the 289s, GT40s and GT40Ps, I would like to know how much power difference there realy is. I would bet there is not nearly as much difference as most of you think. The GT40s and Ps have the best factory ports, the Ps have the best combution chamber that ford has had in a long time. The 289s have a good chamber design, they are smaller than any of the late model heads. There is not going to be a lot of flow difference between the heads and the extra compression of the 289s will probably make up for most of the power gained by the extra flow of the GT40s or the Ps.
As for running good numbers with stock heads. There are a lot of stock and super stock racers running very quick with stock heads. In super stock I think it has been legal to port the heads for some time, but stock eliminator they are suppose to run as cast heads, but it is faily well known that many of the fastest cars have acid ported heads. The super stock cars run after market intakes with stock carbs, the stock eleminators run stock carbs, intakes and stock lift cams. Of the fords the most popular stock and super stock engines are the 289s, 351C 4Vs, 427s, 428CJs, 429CJs and the 5.0 cobra engines. Most of the stock eleminator 289 cars I think run 12s, with some of the faster class cars running 11s. I know some of the super stock 289 cars run 10s. I would also bet that the fun ford class that requires basicaly stock engines has a lot of acid ported heads running in that class. If you don't already have a set of heads yes I would suggest GT40Ps, but if you already had a set of useable 289s I would not go looking for a set of Ps, unless you had a buyer for the 289s and the Ps were not going to cost you much or you wanted lower compression for some reason such as wanting to run low octane fuel, or a blower.
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My car is an '85 sonic blue coupe with 302 bored and stroked to 364, Ported Twisted Wedge heads and a BXR intake, A9M ECM with a Tweecer, C4 with trans brake, Hoosier 275/60/15 drag radials, no power adders. The car is still street driven, with a best of 10.21 at 131 mph with a 1.51 60' spinning lightly. With this combo it made a best of 460 hp and 410 lbs of torque at the wheels. |
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